package com.运算符operator;

public class Operator5 {
    public static void main(String[] args) {
        int a = 10;
        int b = 20;
        a+=b;//  a = a + b
        a-=b;//  a = a - b
        System.out.println(a);

        //字符串连接符 +  ,String
        System.out.println(a+b);
        System.out.println("我的"+a+b);
        System.out.println(a+b+"");
    }
}
